Minette awakens as an automata puppet crafted by the puppeteer Mise Altoise when a meteor imbued with mystical Ale energy crashes near Ert'Aria. Upon awakening, she immediately designates Leicester Maycraft as her paternal figure, having encountered him first. This establishes their core relationship dynamic where she consistently calls him "papa."

Physically resembling a human girl of about ten years, she possesses an innocent, carefree, and inherently caring disposition. This personality allows her to form friendships easily, exemplified by her bond with Miriam Roland, another automata confined due to fragility. Minette regularly visits Miriam, sharing stories of the outside world to provide emotional support. Her awakening and origins serve as the catalyst for significant adventures undertaken by Leicester and Clan Oasis, driving their exploration into her creator's background and the mysteries of Ale energy.

A critical aspect of her existence is her degrading core energy source. Within the original visual novel's narrative, Leicester develops a replacement core, the "Blessed Campanella," to sustain her, enabling her original core to save Miriam. This act highlights Minette's role in intersecting character arcs, though the anime adaptation simplifies this plot. Her mechanical nature surfaces during key developments, including revelations about her creation by Mise Altoise—simultaneously revealed as Agnes Boulange's mother—and parallels to Miriam's existence as an artificial vessel housing a human spirit.

Minette maintains a stabilizing presence within Clan Oasis through unwavering optimism and kindness. Her interactions often soften interpersonal conflicts, such as mitigating Carina Verritti's jealousy through genuine affection. She actively participates in guild activities and community events like beach outings and harvest festivals, where her curiosity and enthusiasm are prominent features. While her core traits remain consistent, subtle growth manifests in increasing empathy and protective instincts, particularly toward Miriam and later Aberdeen Roland during his redemption arc.

Her broader impact includes inspiring an official fanclub in Ert'Aria and influencing technological developments. This influence is evidenced by Golem, a rock-based automaton created by Salsa Tortilla, exhibiting behavioral programming modeled after Leicester's supportive nature. This programming activates to comfort Chelsea Arcot during distress, indirectly linking Minette's influence to other characters' emotional resolutions. No significant alterations exist regarding her character in spin-off media or OVAs beyond this established role.